RD-401 successfully addresses these challenges designers face when
transitioning to BLDC designs by optimizing the PCB layout, the current
sampling circuits, and the current sampling algorithm. The use of the
FCM8531 controller in this solution allows a variety of reference
designs, together with an integrated development environment – the Motor
Control Development System (MCDS) – which incorporates three drive
modes. Using these tools, developers and design engineers can quickly
implement a motor drive design and promptly assess the results.

Additionally, the new reference design incorporates a Power Factor
Correction (PFC) block, with the aim of improving power transmission
efficiency. In addition the PFC module acts as the voltage
pre-regulator. It is able to convert a broad input voltage range of
90-264VAC to 400VDC and below. This allows the power device and motor to
have a small current rating, while outputting at a higher power.

"This new reference design is fully-functional and includes all of the
circuitry required for running a motor," noted Jian Wang, China Regional
Sales Director and Director of Motion Control, Asia Pacific, Fairchild
Semiconductor. "Customers only need to connect three wires to the motor.
Furthermore, the PFC can be disabled by simply disconnecting the jumper,
allowing customers to easily assess whether PFC benefits performance. A
debugging and development interface allows for further adjustment and
optimization. This high price-performance, energy-saving design helps
ensure an optimal time-to-market for our customers."

Fairchild’s power components and support for motor control design in
home appliances and industrial applications address consumer and
regulatory-led demand for more energy-efficient, better performing
appliances and electronic devices.

Fairchild Semiconductor Global Power ResourceSM Centers are a
valuable resource for system design engineers, enabling them to quickly
differentiate their designs and shorten time-to-market. The centers were
established to deliver innovative, efficient power management and mobile
solutions targeting a wide range of applications both locally and around
the world. This solution was developed at the GPRC located in China. The
company has other centers in Greater China, in Shenzhen and Taipei, and
in the United States, Germany, South Korea and Brazil.

For information on the devices in this reference design, please visit:

Fairchild Semiconductor (NYSE:
FCS) – global presence, local support,
smart ideas. Fairchild delivers energy-efficient, easy-to-use and
value-added semiconductor solutions for
power
and
mobile
designs. We help our customers differentiate their products and solve
difficult technical challenges with our expertise in power and analog
and mixed signal products. Please contact us on the web at
http://www.fairchildsemi.com .